Unlock instant, AI-driven research and patent intelligence for your innovation.

Multiple pass axial cooled generator

a generator and axial cooling technology, applied in the direction of dynamo-electric machines, electrical equipment, magnetic circuit shapes/forms/construction, etc., can solve the problems of insufficient heat generation time, insufficient passage time, and inefficient utilization of cooling airflow

Inactive Publication Date: 2012-04-24
GENERAL ELECTRIC CO
View PDF15 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is about a new generator design that uses an air flow re-direction member to cool the stator. This allows for a more efficient cooling process that reduces the risk of damage to the stator. The cooling air flow is guided in one direction and then redirected in another direction to create a multiple pass axial cooled stator. This design helps to improve the performance and durability of generators."

Problems solved by technology

As such, the cooling airflow is not utilized efficiently.
More specifically, the shorter stator length and correspondingly shorter axial flow passage do not provide adequate time for sufficient heat transfer between the stator and the air flow.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multiple pass axial cooled generator
  • Multiple pass axial cooled generator
  • Multiple pass axial cooled generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015]With reference to FIGS. 1-4, a generator constructed in accordance with an exemplary embodiment is indicated generally at 2. Generator 2 includes a housing 4 that surrounds a stator 6 and a rotor (not shown). Stator 6 includes a first end 10 that extends to a second end 12 through an intermediate portion 14 that defines an inner diametric portion 16 and an outer diametric portion 17. As shown, stator 6 is formed from a plurality of stacked laminations, one of which is indicated at 18. Stator 6 includes a plurality of slots / grooves 20 formed on inner diametric portion 16 and a plurality of compression bolt slots 23 formed about outer diametric portion 17.

[0016]As best shown in FIG. 2, stator 6 includes a plurality of axial flow passages, indicated generally at 28, that extend between first and second ends 10 and 12. Axial flow passages 28 provide conduits for a cooling air flow that passes through stator 6. Stator 6 is also shown to include first and second finger / compression p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A generator includes a housing and a stator arranged within the housing. The stator includes a first end that extends to a second end, and a plurality of axial flow passages extending between the first and second ends. The generator also includes at least one air flow re-direction member provided on at least one of the first and second ends of the stator. The at least one air flow re-direction member fluidly connects adjacent ones of the plurality of axial flow passages. The at least one air flow re-direction member guides an air flow passing though one of the plurality of axial flow passages in a first direction into an adjacent one of the plurality of axial flow passages in a second direction, the second direction being distinct from the first direction.

Description

BACKGROUND OF THE INVENTION[0001]The subject matter disclosed herein relates to the art of generators and, more particularly, to a generator including a multiple pass axially cooled stator.[0002]Some conventional generators utilize a radial air flow to cool internal components. In particular, axial air flows are directed through a stator portion of the generator. The stator includes a plurality of passages that serve as a conduit for a cooling airflow. The cooling air flow is passed, in one direction, through the plurality of passages to conduct heat away from the stator. By lowering internal stator temperatures, generator efficiency is enhanced.[0003]Smaller generators, such as those employed in wind turbines, may also employ stators having axial flow passages. However, some generator designs employ a shorter stator length. As such, the cooling airflow is not utilized efficiently. More specifically, the shorter stator length and correspondingly shorter axial flow passage do not pro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): H02K1/20H02K9/00
CPCH02K1/20H02K9/02H02K9/08H02K2205/09
Inventor MADUSKUIE, ANDREW DAVIDBARNES, GARY RANDALLMANCUSO, THOMASDILORENZO, PETER ANTHONY
Owner GENERAL ELECTRIC CO